1240574 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一種液晶顯示系統，尤指一種具有儲存 功能之液晶顯示系統。 5 【先前技術】 由於電子技術快速演進，現下電子產品無不朝著 幸二/專、短、小」的趨勢演進。以往電視機使用陰極射 線管’而使得電視機螢幕尺寸愈大，電視機的厚度也越厚。 10這在現代狹小空間中，如何擺設大尺寸電視機形成一重要 問題。然而由於液晶顯示器的誕生，上述之問題即不復存 在。 目别之液晶電視係將於液晶顯示器與電視解碼裝置 結合，而可將電視節目播放於液晶顯示器上供使用者觀 15看，或是將液晶電視連接電腦而作為電腦之輸出裝置（亦即 液晶顯示器），而無論是用來播放電視節目或輸出電腦之訊 號，液晶電視僅是作為一輸出裝置，然隨著數位化資訊之 應用愈趨成熟，如何以液晶電視所處理之數位視訊提供更 多樣化之應用以滿足使用者之需求，實有其需要。 20 【發明内容】 本發明之目的係在提供一插目女μ 4-一 1、種具有儲存功能之液晶顯 示系統，俾能於該液晶顯示系統中儲存—電視節目。 以0574 ίο 15 ^依據本發明之特色，係提供一種具有儲存功能之液晶 ’員示系統，包含一影像輸入介面、一緩衝區、一去交錯裝 j、—放大/縮小裝置、一影像處理裝置、一緩衝區控制器、 儲存媒體介面及直接記憶體存取控制器。該影像輸入介 =係接收一外部輸入之影像資料流；該緩衝區係耦合至該 影像輪入介面，以暫存該輸入影像資料流；該去交錯裝置 耦合至該緩衝區，以將該影像資料流由交錯影像格式轉換 為非交錯影像格式；該放大/縮小裝置搞合至該去交錯裝 置’，依據一液晶顯示螢幕之大小’將該非交錯影像格式之 該影像資料流放大或是縮小；該影像處理裝置竊合至該放 大/鈿小裝置，對該放大或是縮小之影像資料流執行影像處 理’以增進該影像資料流之影像品質；該緩衝區控制器用 以控制該緩衝區之存取；該儲存媒體介面_合至1 之儲存媒體與該緩衝區，以將儲存於該儲存媒體之 身料流傳送至該緩衝區，以進行播放，或是將該= 的一影像資料流傳送至該該儲存媒體，以儲存該影像= 流；以及，該直接記憶體存取控制器係用以加速該子桩 體介面及該緩衝區之間資料存取速度。 、 【實施方式】 有關本發明之具有儲存功能之液晶顯示 施例’請先參照圖1顯示之系統方塊圖，其主要由—t貫 入介面210、一縮小/通過裝置215、一緩衝區22〇、二像輪 區控制器225、-去交錯裝置23〇、—放大/縮小裝置:衡 20 1240574 一影像處理裝置240、一影像編解碼器245、一儲存媒體介 面250、一直接記憶體存取控制器255、一混和器及輸出格 式化裝置260、一螢幕直接顯示裝置265、及一處理器270 所組成。 5 該影像輸入介面210係耦合至一外部的電視解碼裝置 280，用以接收該電視解碼裝置280所產生之一影像資料 流，該影像資料流格式為YCbCr或RGB。該縮小/通過裝置 215依據一液晶顯示螢幕之解析度，以執行一縮小（scaling down)或是直接通過（bypass)運算。該緩衝區220係耦合至該 10 縮小/通過裝置215，以暫存該輸入影像資料流。該緩衝區 控制器225用以控制該緩衝區220之存取。 該去交錯裝置230耦合至該緩衝區220，以將該影像資 料流由交錯影像格式轉換為非交錯影像格式。該放大/縮小 裝置235耦合至該去交錯裝置230，依據該液晶顯示螢幕之 15 解析度，將該非交錯影像格式之影像資料流放大或是縮 小。該影像處理裝置240耦合至該放大/縮小裝置235，對該 放大或是縮小之影像資料流執行影像處理，以增進該影像 資料流之影像品質，影像處理可為亮度處理（brightness)、 對比處理（contrast)、色度色頻處理（hue)及飽和處理 20 (saturation) 〇 該螢幕直接顯示裝置265(on screen display、0SD)係用 以顯示該液晶顯示螢幕之相關資料，例如為液晶顯示螢幕 之亮度（brightness)、對比（contrast)、影像鎖定（image lock)、顯示模式（display mode)等資料。該混和器及輸出格 1240574 式化裝置260其耦合至該螢幕直接顯示裝置265及該影像處 理裝置240,以將該螢幕直接顯示裝置265之輸出影像與該 影像處理裝置240之輸出影像資料流疊和後，再輸出至該液 晶顯示勞幕予以播放。 5 該儲存媒體介面250係耦合至一外部之儲存媒體290， 以將儲存於該儲存媒體290之一影像資料流傳送至該緩衝 區220，以進行播放，或是將該緩衝區220中的一影像資料 流傳送至該該儲存媒體290，以儲存該影像資料流。該外部 之儲存媒體290可為CF卡、SD卡、記憶體插入卡（Memory 10 Stick Card)、聰明媒體卡（Smart Media Card)、多媒體卡 (Multi Media Card)或微硬碟裝置（Macro Drive)，甚至可以 為一 ΑΤΑ介面之硬碟裝置，以提供儲存功能。該直接記憶 體存取控制器255其係用以加速該儲存媒體介面250及該緩 衝區220之間資料存取速度。 15 該影像編解碼器245係耦合至該緩衝區220，以將該緩 衝區220中的影像資料流編碼後，再傳送至該儲存媒體介面 250，以儲存在一外部儲存媒體290,或是將由該儲存媒體 介面250讀入至該緩衝區220中的影像資料流解碼後，再予 以播放。該影像編解碼器245可為一 JPEG編解碼器，以對 20 影像執行JPEG編碼/解碼。該影像編解碼器245亦可為一 MPEG2編解碼器，以對影像執行MPEG2編碼/解碼。該影 像編解碼器245亦可為一MPEG4編解碼器，以對影像執行 MPEG4編碼/解碼。 1240574 圖2係本發明播放一電視節目時之影像資料傳輸示意 圖。一類比之電視節目訊號經由該電視解碼裝置28〇解碼為 數位之YCbCr資料流，並輸出至該影像輸入介面21〇。由於 一般電視節目之解析度低於液晶顯示螢幕（圖未示）之解析 5度，故該縮小/通過裝置215執行一直接通過（bypass)運算， 以將該數位之YCbCr資料流傳送至該緩衝區22〇中。該緩衝 區控制器225再由該緩衝區220中讀出該數位之YCbCr資料 流並送到該去交錯裝置230，以將該數位之YCbCr資料流由 交錯式（interlace)格式轉換成非交錯式 10式。如圖3所示，將該數位之YCbCr資料流中的奇數場（〇化 field)與偶數場（even field)轉換成一非交錯式圖框汸㈣匀。 該非交錯式之數位YCbCr資料流再經由該放大/縮小裝 置235放大至適合顯示至該液晶顯示的大小。再由該影像處 理裝置240執行亮度（brightness)、對比（contrast)、色度色頻 15 (hue)及飽和（saturation)等影像處理，以增強該非交錯式之 數位YCbCr資料流的影像品質。最後，經由該混和器及輸 出格式化裝置260將該螢幕直接顯示裝置265之螢幕直接顯 資料（OSD data)與該非交錯式之數位YCbCr資料流混合，並 產生一適當之輸出資料流而輸出到該液晶顯示螢幕。 2〇 、圖4係本發明播放一儲存於該儲存媒體290中之影像資 料之傳輸示意圖。該影像資料係以壓縮格式儲存於該儲存 媒體290中。首先該處理器27〇由該儲存媒體介面25〇讀入該 影像資料之檔頭，經由該處理器27〇對該該影像資料之槽頭 進行解譯，而得知該影像資料之格式、大小等資訊。該處 1240574 理器27設定該直接記憶體存取控制器255，以將該影像資料 搬到該緩衝區220中。再由該影像編解碼器245的解壓縮將 影像還原並送回該緩衝區22〇中。緩衝區控制器225再由該 緩衝區220中讀出解壓之影像資料，並送到去該交錯裝置 230、放大/縮小裝置235及影像處理裝置24〇產生一適當之 輸出資料流而輸出到該液晶顯示螢幕。 10 15 圖5係本發明儲存一電視節目時之影像資料傳輪示意 圖。一類比之電視節目訊號經由該電視解碼裝置280解碼為 數位之YCbCr資料流，並輸出至該影像輸人介面川。為節 省儲存空間，故該縮小/通過裝置215執行一縮小 (^aling-d〇Wn)運算，並將該數位之YCbCr資料流傳送至該 緩衝區220中。再由該影像編解碼器245的壓縮將影像壓縮 成數位YCbCr資料格式後送回該緩衝區22〇中。再經由該直 接記憶體存取控制器255,以將該壓縮的影像資料經由該儲 存媒體介面250而儲存至該儲存媒體謂。如此，即可達到 錄製一個完整電視節目之目的，再經由圖4所示之播放儲存 媒體之貧料傳輸路徑，即可撥放完整電視節目。 由以上之呪明可知，本發明利用該儲存媒體介面 及直接記憶體存取控制器255使得—電視節目可以儲存至 儲存媒體290中，而達到錄製一個完整電視節目之目的。 故本發明補可解決f知液晶顯㈣統無法儲存電視節目 的問題’同時可增加使用者的便利性。 20 1240574 上述實施例僅係為了方便說明而舉例而已，本發明所 主張之權利範圍自應以申請專利範圍所述為準，而非僅限 於上述實施例。 5【圖式簡單說明】 圖1係本發明具有儲存功能之液晶顯示系統的系統方塊圖。 圖2係本發明播放一電視節目時之影像資料傳輸示意圖。 圖3係本發明之非交錯示轉換之示意圖。 圖4係本發明播放一儲存於儲存媒體中之影像資料傳輸示 10 意圖。 圖5係本發明儲存一電視節目時之影像資料傳輸示意圖。 【圖號說明】 影像輸入介面 210 縮小/通過裝置 215 緩衝區 220 緩衝區控制器 225 去交錯裝置 230 放大/縮小裝置 235 影像處理裝置 240 影像編解碼器 245 儲存媒體介面 250 直接記憶體存取控制器 255 混和器及輸出格式化裝置 260 螢幕直接顯示裝置 265 處理器 270 電視解碼裝置 280 儲存媒體 290 11 151240574 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a liquid crystal display system, and more particularly to a liquid crystal display system having a storage function. 5 [Previous technology] Due to the rapid evolution of electronic technology, all electronic products are now evolving towards the trend of “Kojiji / Specialty, Short, Small”. In the past, the television used a cathode ray tube, and the larger the screen size of the television, the thicker the television became. 10 This is an important issue in how to set up large-sized TVs in modern small spaces. However, due to the birth of liquid crystal displays, the above problems no longer exist. The LCD TV is a combination of a LCD display and a TV decoding device. TV programs can be played on the LCD display for users to watch, or the LCD TV can be connected to a computer as an output device for the computer (ie, LCD Monitor), whether it is used to play TV programs or output computer signals, LCD TVs are only used as an output device, but as the application of digital information becomes more mature, how to provide more digital video The application of prototypes meets the needs of users, which really has its needs. 20 [Summary of the Invention] The purpose of the present invention is to provide a plug-in female μ 4-a 1. A liquid crystal display system with a storage function, which can not be stored in the liquid crystal display system-television programs. Based on the features of the present invention, 0574 15 ^ According to the features of the present invention, a liquid crystal display system with storage function is provided, which includes an image input interface, a buffer area, a de-interlacing device, an enlargement / reduction device, and an image processing device. , A buffer controller, a storage media interface and a direct memory access controller. The image input interface = receives an externally input image data stream; the buffer is coupled to the image rotation interface to temporarily store the input image data stream; the de-interlacing device is coupled to the buffer to provide the image The data stream is converted from the interlaced image format to the non-interlaced image format; the enlargement / reduction device is coupled to the deinterlaced device, and the image data stream in the non-interlaced image format is enlarged or reduced according to the size of a liquid crystal display screen; The image processing device is coupled to the enlargement / reduction device, and performs image processing on the enlarged or reduced image data stream to improve the image quality of the image data stream; the buffer controller is used to control the storage of the buffer The storage medium interface_the storage medium combined with 1 and the buffer area to transmit the physical stream stored in the storage medium to the buffer area for playback, or to transmit an image data stream of = To the storage medium to store the image = stream; and the direct memory access controller is used to accelerate data between the child pile interface and the buffer area. Access speed. [Embodiment] Regarding the liquid crystal display embodiment with storage function of the present invention, please refer to the system block diagram shown in FIG. , Two image wheel controller 225,-De-interlacing device 23,-Enlarging / reducing device: Heng 20 1240574 An image processing device 240, an image codec 245, a storage media interface 250, a direct memory access The controller 255, a mixer and output formatting device 260, a on-screen direct display device 265, and a processor 270 are composed. 5 The image input interface 210 is coupled to an external television decoding device 280 for receiving an image data stream generated by the television decoding device 280, and the image data stream format is YCbCr or RGB. The reducing / passing device 215 performs a scaling down or bypass operation according to the resolution of a liquid crystal display screen. The buffer 220 is coupled to the 10 reducing / passing device 215 to temporarily store the input image data stream. The buffer controller 225 is used to control the access of the buffer 220. The de-interlacing device 230 is coupled to the buffer 220 to convert the image data stream from an interlaced image format to a non-interlaced image format. The enlargement / reduction device 235 is coupled to the de-interlacing device 230, and enlarges or reduces the image data stream of the non-interlaced image format according to the 15 resolution of the liquid crystal display screen. The image processing device 240 is coupled to the enlargement / reduction device 235 and performs image processing on the enlarged or reduced image data stream to improve the image quality of the image data stream. The image processing may be brightness processing and contrast processing. (Contrast), chroma, color frequency processing (hue), and saturation processing 20 (saturation) 〇 The screen direct display device 265 (on screen display, 0SD) is used to display the relevant information of the liquid crystal display screen, such as a liquid crystal display screen Brightness, contrast, image lock, display mode and other data. The mixer and output grid 1240574 stylized device 260 is coupled to the screen direct display device 265 and the image processing device 240 to overlap the output image of the screen direct display device 265 with the output image data of the image processing device 240. After the sum, it is output to the LCD display screen for playback. 5 The storage medium interface 250 is coupled to an external storage medium 290 to transmit an image data stream stored in the storage medium 290 to the buffer 220 for playback, or one of the buffer 220 The image data stream is transmitted to the storage medium 290 to store the image data stream. The external storage medium 290 may be a CF card, an SD card, a Memory 10 Stick Card, a Smart Media Card, a Multi Media Card, or a Micro Drive. , Even a hard disk device with an ATAA interface to provide storage functions. The direct memory access controller 255 is used to accelerate the data access speed between the storage medium interface 250 and the buffer area 220. 15 The image codec 245 is coupled to the buffer 220 to encode the image data stream in the buffer 220 and send it to the storage medium interface 250 for storage in an external storage medium 290. The storage media interface 250 reads the image data stream into the buffer 220 and decodes the image data stream before playing it. The image codec 245 may be a JPEG codec to perform JPEG encoding / decoding on 20 images. The video codec 245 may also be an MPEG2 codec to perform MPEG2 encoding / decoding on the video. The video codec 245 may also be an MPEG4 codec to perform MPEG4 encoding / decoding on the video. 1240574 FIG. 2 is a schematic diagram of video data transmission when a television program is played by the present invention. An analog TV program signal is decoded into a digital YCbCr data stream by the TV decoding device 28 and output to the video input interface 21. Since the resolution of a general television program is lower than the resolution of a liquid crystal display screen (not shown) by 5 degrees, the reduction / pass device 215 performs a bypass operation to transmit the digital YCbCr data stream to the buffer. Zone 22o. The buffer controller 225 reads the digital YCbCr data stream from the buffer 220 and sends it to the de-interlacing device 230 to convert the digital YCbCr data stream from an interlace format to a non-interlace format. 10 types. As shown in FIG. 3, the odd field and even field in the digital YCbCr data stream are converted into a non-interlaced frame. The non-interlaced digital YCbCr data stream is then enlarged by the enlargement / reduction device 235 to a size suitable for display to the liquid crystal display. The image processing device 240 then performs image processing such as brightness, contrast, hue, saturation, and saturation to enhance the image quality of the non-interlaced digital YCbCr data stream. Finally, through the mixer and output formatting device 260, the screen direct display data (OSD data) of the screen direct display device 265 is mixed with the non-interlaced digital YCbCr data stream, and an appropriate output data stream is generated and output to The LCD screen. 20, FIG. 4 is a schematic diagram of the transmission of an image data stored in the storage medium 290 according to the present invention. The image data is stored in the storage medium 290 in a compressed format. First, the processor 27 reads the file header of the image data from the storage medium interface 25, and interprets the slot header of the image data through the processor 27 to obtain the format and size of the image data. And other information. The 1240574 processor 27 sets the direct memory access controller 255 to move the image data into the buffer area 220. The image is then decompressed by the image codec 245 to restore the image and send it back to the buffer area 22. The buffer controller 225 reads the decompressed image data from the buffer 220 and sends it to the interleaving device 230, the enlargement / reduction device 235, and the image processing device 24 to generate an appropriate output data stream and output it to the LCD display. 10 15 FIG. 5 is a schematic diagram of an image data transfer wheel when a television program is stored in the present invention. An analog TV program signal is decoded by the TV decoding device 280 into a digital YCbCr data stream and output to the video input interface. In order to save storage space, the reduction / pass device 215 performs a reduction (^ aling-d0Wn) operation, and transmits the digital YCbCr data stream to the buffer 220. The image is compressed by the image codec 245 to compress the image into a digital YCbCr data format and sent back to the buffer area 22. Then, through the direct memory access controller 255, the compressed image data is stored to the storage medium via the storage medium interface 250. In this way, the purpose of recording a complete TV program can be achieved, and then the complete TV program can be played through the poor material transmission path of the storage media shown in FIG. 4. As can be seen from the above description, the present invention utilizes the storage medium interface and the direct memory access controller 255 to enable—TV programs to be stored in the storage medium 290, so as to achieve the purpose of recording a complete TV program. Therefore, the present invention can solve the problem that the LCD display system cannot store TV programs, and can increase user convenience. 20 1240574 The above embodiments are merely examples for convenience of explanation. The scope of the rights claimed in the present invention shall be based on the scope of the patent application, rather than being limited to the above embodiments. 5 [Brief description of the drawings] FIG. 1 is a system block diagram of the liquid crystal display system with a storage function of the present invention. FIG. 2 is a schematic diagram of image data transmission when a television program is played by the present invention. FIG. 3 is a schematic diagram of a non-interlaced conversion of the present invention. FIG. 4 is a schematic diagram of the present invention displaying an image data transmission stored in a storage medium. FIG. 5 is a schematic diagram of image data transmission when a television program is stored in the present invention. [Illustration of figure number] Image input interface 210 Reduce / pass device 215 Buffer zone 220 Buffer controller 225 De-interlacing device 230 Enlarge / reduce device 235 Image processing device 240 Image codec 245 Storage media interface 250 Direct memory access control 255 Mixer and output formatting device 260 Direct display device 265 Processor 270 TV decoding device 280 Storage media 290 11 15